Glacial Lakes Energy promotes ethanol with "Flex Fuel Fridays"

South Dakota-based Glacial Lakes Energy has been promoting the use of ethanol with its "Flex Fuel Fridays" program. Since July, for one hour around noon on Fridays at five locations, E15, E20 and E30 are 50 cents off per gallon, and E85 is $1 off. "We've pumped from 800 to 850 gallons of ethanol in an hour, and [consumers] see what this is doing to their bottom line," said Marcy Kohl, manager of corporate administration at Glacial Lakes.